KEY ERP CONCEPTS Fall 2011 Fundamentals of Business Information Systems 3 classes of Data 3 classes or types of data exist in an ERP system: Master Data Organizational Data Transactional Data 1
Organizational Data Organizational Data: Data elements which model the organizational structure units in an enterprise. Examples: plants, warehouses, storage locations, divisions, distribution channels, sales organizations, etc. Arranged according to tasks (particular activities) and functions (overall responsibilities). Mapping actual organization units to appropriate SAP structural representation is key element in configuration. Organizational data is a more specific type of master data and is rarely changed. Before creating master data, organizational data must be in place. Master Data Master Data: relatively fixed, frequently used data that remains stable over a long period of time. Often shared between different functional areas, processes, and system modules. Examples: customer data (address, contact info, etc.), vendor data, material data, and more. Providing consistency and accuracy in master data with and across systems: role of master data management. In SAP managed by SAP Exchange Infrastructure (XI) (old name), Process Integration (PI) (new name). 2
Transaction Data Transaction Data: Transitory data generated from independent business activities, typically based on internal and external exchanges/flows (information, money, etc.). Customer orders, payment records, goods movements, etc. Archived and accessible over time, but not reused regularly. Unlike master data, aggregate transactional data is dynamic each transaction is unique Transaction data pulls from organizational data, master data, and rules (and is therefore traceable). Transaction Data vs. Master Data 3
Business Process Integration Data Focus The 3 Legged Stool Components: Organizational Data Master Data Rules Transaction Data Rules Rules: defines the parameters for Master Data and Transactions (valid values, uses, inter- and intrarelationships, etc.) Determines functionality and usage of Master Data and Transaction processing. A P.O. can only be accepted on a valid customer account. (Must create customer account before entering first order.) Sales person can only give a discount of 5%. Relatively fixed Changes as policy changes 4
Document Principle Document Principle: Every transaction that writes data to underlying database creates a uniquely numbered electronic document. Each document contains information such as Person responsible (who?) Date and time of the transaction (when?) Commercial content (what?) Once created, a document cannot be deleted from the database. Key to preserving an audit trail. SAP Document Flow 5
SAP System Landscape High Level Overview HP Server SAP ERP Client: a self-contained unit in an SAP system with separate master records and its own set of tables. Given an identifying number. SAP BI ERP Terms and Concepts Instance: each install of an ERP (or other) software on an individual application server. Typically 1 instance per machine. Typical SAP Landscape consists of multiple instances Typical install size: 1 terabyte. SAP is platform agnostic. Can run on IBM AIX, IBM AS/400, Linux, HP-UX, Solaris, IBM S/390, Windows 6
Typical Company Installation Landscape Server SAP ERP Server SAP ERP Server SAP ERP Transport Transport Development Test Production Server SAP ERP Training ERP Terms and Concepts Configuration: process of distinctively setting up each instance to fit needs of customer (within certainly existing limits) What you do to have the system execute your business processes the way you want them executed. No coding necessary. Change options in configuration settings. Over 8,000 configuration decision points available. 7
ERP Terms and Concepts Customization: going beyond configuration to design and write custom code to enhance or replace existing ERP functionality. Facilitated in SAP ERP by user exits and other code hooks. "Configuration, not customization." "We need people that can re-engineer standard SAP and minimize writing code." (Valerie Homan, Manager, Enterprise Solutions, Y12 National Security Complex) SAP Configuration Most infrastructure decisions, including configuration decisions, occur during project implementation Basic SAP installation--over 28,000 tables. Once it is done, very difficult to undo or reconfigure SAP Consultant Focus Configuration Customization 1990s Today 8
SAP Database At the heart of every SAP installation is a relational database server. Oracle, IBM Informix, SAP MaxDB, MS SQL Server, IBM DB2 Licensed separately from SAP. Do not manipulate database data apart from SAP control. SAP will not support your company. Tables created, managed, etc. from within SAP. Valid SAP-independent operations: DBMS patching, backup, recovery, auditing, performance tuning. Keeping hardware and software infrastructure running, patched, performance tuned, etc. is the role of SAP Basis Administrator. Conclusion ERP systems do not work "out of the box." An instance requires significant configuration. Configuration is a non-trivial activity. Configuration brings together concepts of organizational data, master data, transaction data, and business rules. Development in ERP requires one be cognizant of the data models established, and the functionality of various modules. One cannot fully appreciate the complexity of configuration management without additional study. 9
Copyrights Presentation prepared by and copyright of Dr. Tony Pittarese, East Tennessee State University, Computer and Information Sciences Dept. (pittares@etsu.edu) Podcast lecture related to this presentation available via ETSU itunesu. Microsoft, Windows, Excel, Outlook, and PowerPoint are registered trademarks of Microsoft Corporation. IBM, DB2, DB2 Universal Database, System i, System i5, System p, System p5, System x, System z, System z10, System z9, z10, z9, iseries, pseries, xseries, zseries, eserver, z/vm, z/os, i5/os, S/390, OS/390, OS/400, AS/400, S/390 Parallel Enterprise Server, PowerVM, Power Architecture, POWER6+, POWER6, POWER5+, POWER5, POWER, OpenPower, PowerPC, BatchPipes, BladeCenter, System Storage, GPFS, HACMP, RETAIN, DB2 Connect, RACF, Redbooks, OS/2, Parallel Sysplex, MVS/ESA, AIX, Intelligent Miner, WebSphere, Netfinity, Tivoli and Informix are trademarks or registered trademarks of IBM Corporation. Linux is the registered trademark of Linus Torvalds in the U.S. and other countries. Oracle is a registered trademark of Oracle Corporation. HTML, XML, XHTML and W3C are trademarks or registered trademarks of W3C, World Wide Web Consortium, Massachusetts Institute of Technology. Java is a registered trademark of Sun Microsystems, Inc. JavaScript is a registered trademark of Sun Microsystems, Inc., used under license for technology invented and implemented by Netscape. SAP, R/3, SAP NetWeaver, Duet, PartnerEdge, ByDesign, SAP Business ByDesign, and other SAP products and services mentioned herein as well as their respective logos are trademarks or registered trademarks of SAP AG in Germany and other countries. Business Objects and the Business Objects logo, BusinessObjects, Crystal Reports, Crystal Decisions, Web Intelligence, Xcelsius, and other Business Objects products and services mentioned herein as well as their respective logos are trademarks or registered trademarks of Business Objects S.A. in the United States and in other countries. Business Objects is an SAP company. Other products mentioned in this presentation are trademarks of their respective owners. 10